CN103695687A - Refining agent for smelting aluminum alloy - Google Patents
Refining agent for smelting aluminum alloy Download PDFInfo
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- CN103695687A CN103695687A CN201310705571.0A CN201310705571A CN103695687A CN 103695687 A CN103695687 A CN 103695687A CN 201310705571 A CN201310705571 A CN 201310705571A CN 103695687 A CN103695687 A CN 103695687A
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- refining agent
- aluminium alloy
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- alloy smelting
- refining
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Abstract
The invention relates to a refining agent for smelting an aluminum alloy. The refining agent is characterized by comprising the following components by mass percent: 35% to 45% of NaCl, 25% to 35% of KNO3, 3% to 8% of CaF2, 6% to 10% of Na2SiF6, 7% to 12% of Na3AlF6, 5% to 10% of graphite and 0.5% to 1.5% of rare earth. The refining agent has the characteristics of good refining effect, strong degassing capacity and the like, and cannot generate noxious gas during a production process.
Description
Technical field
The present invention relates to a kind of aluminium alloy smelting manufacture field, specifically a kind of aluminium alloy smelting refining agent.
Background technology
Aluminium alloy inevitably absorbs and carries gas and produce inclusion in fusion process, and this,, by making the purity drop of aluminium alloy, affects quality.Therefore, must carry out refining, purifying treatment to aluminium alloy smelting process, to get rid of these gases and inclusion, improve the quality of aluminium alloy, and in aluminium alloy, add refining agent to carry out refining and purifying treatment is a kind of measure of commonly using.
Current domestic aluminium alloy smelting mainly adopts the absorption purifying method that adds various flux, comprises and passes into nitrogen and use villaumite to make the method for refining of refining agent.Conventional muriate has sodium-chlor, zinc chloride, Manganous chloride tetrahydrate, hexachloroethane, tetracol phenixin etc.The gas that plays refining effect that the villaumite of single quality produces only has AlCl
3, gas production rate is fewer, therefore refining effect is also poor, and hexachloroethane and tetracol phenixin react generation Cl under smelting temperature
2, HCl, AlCl
3, C
2cl
4deng gas, though refining effect is better, hexachloroethane is made its product melting out of refining agent all increasing zinc in various degree, increase the mass defects such as manganese, resolvent is not only poisonous but also have a strong impulse smell, not only unfavorable to workers ' health, and easy damage equipment, also contaminate environment.
Relevant aluminum refining agent, we retrieve with Publication about Document:
1, Chinese patent, title: a kind of aluminium and aluminium alloy refining agent, application (patent) number: 201110345662.9, open (bulletin) number: CN102409193A application (patent right) people: M-Union (Wuhu) Co., Ltd. address: No. 3, Western Hills road, high-tech industrial development zone, City of Wuhu in Anhui, invention (design) people: Xu Zhangyue, summary: this disclosure of the invention a kind of aluminium alloy smelting refining agent, it is mainly by constitutive material NaBF
4, NaCl, C
2cl
6, Na
2tiF
6, NaF by certainweight per-cent toast, combination treatment obtains.Preparation method of the present invention is simple, and the refining agent making has improved aluminium alloy smelting liquid refining effect, simplifies the technological process of production, improves refining agent utilization ratio.
2, Chinese patent, title: a kind of aluminium alloy smelting refining agent application (patent) number: CN201210492286.0 open (bulletin) number: CN102965536A applies for (patent right) people: Hangzhou Wan new district, Ningbo Mount Everest service for business management company limited address: No. 1188, two tunnel, 315336 strand, Hangzhou Wan new district, Ningbo City, Zhejiang Province invention (design) people: Zou Keyin summary: this invention relates to a kind of aluminium alloy smelting refining agent, by following components in weight percent, formed: Repone K 40-70%, sodium aluminum fluoride 15-30%, phenyl-hexafluoride 1-10%, sulfurated lime 5-15%, sodium sulfate 5-20%, the present invention has strengthened the ability except dehydrogenation, make the content of hydrogen be reduced to the level of 0.12ml/gAl, impurity-eliminating effect is obvious, and add the refining production process technology after refining agent simple, improved the utilization ratio of refining agent.
Above-mentioned refining agent reacts and generates Cl under high melt
2, AlCl
3, C
2cl
4deng gas, and above-mentioned refining agent is also containing as harmful elements such as benzene, not only poisonous but also have strong impulse smell, unfavorable to workers ' health, also contaminate environment.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, to improve a kind of alloy refining effective, deaeration capability is strong, does not particularly produce the aluminium alloy smelting refining agent of obnoxious flavour.
The present invention is achieved in that
An aluminium alloy smelting refining agent, is characterized in that, by NaCl, KNO
3, CaF
2, Na
2siF
6, Na
3a1F
6, graphite and rare earth form, said components is respectively by mass percentage, 35-45%:25-35:3-8%:6-10%:7-12%:5-10%:0.5-1.5%.
The above component is respectively NaCl:38-42%, KNO by mass percentage
3: 26-30%, CaF
2: 3-5%, Na
2siF
6: 7-9%, Na
3a1F
6: 8-11%, graphite: 6-8%, rare earth: 0.6-1.2%.
Above-described rare earth is scandium and yttrium, and its mass percent is 1:1.
Above-described refining agent composition also comprises BaSO
4, Na
2cO
3, K
2cO
3, Na
2tiF
6in one or more.
Outstanding substantive distinguishing features of the present invention and significant progress are:
1. refining agent good impurity removing effect of the present invention, deaeration capability is stronger, its hydrogen content can drop to the level of about 0.10～0.15ml/100gAl, and this refining agent does not chemically react with metal and furnace lining, controlled heating effect, reduce metal loss, aluminum oxidation burn out rate reduces more than 40%, and aluminium slag output capacity reduces by 60%.
2. after the aluminium alloy smelting after refining agent processing of the present invention, the microtexture compactness of circle ingot casting is even, substantially without defects such as loose, slag inclusions, the homogeneity of interior tissue and the refinement of crystal grain of aluminium alloy round cast ingot have been increased, improved quality and the processing characteristics of rear operation aluminium extrusion alloy profile, aluminium alloy round cast ingot yield rate brings up to 98.5% by original 95.5%.
5. refining agent composition of the present invention does not contain hexachloroethane and tetracol phenixin, therefore can not generate Cl when high melt
2, AlCl
3, C
2cl
4etc. poisonous and have strong impulse smell, harmless to workers ' health, environmentally safe.
Embodiment
Embodiment 1
Take by mass percentage NaCl:35 part, KNO
3: 35 parts, CaF
2: 3 parts, Na
2siF
6: 6 parts, Na
3a1F
6: 7 parts, graphite: 5 parts, rare earth scandium and yttrium: 0.5 part, by above several mixing of materials, stir, put into the electric furnace over hot melting water, cooling after coming out of the stove that decrystallizes, last sieving filter obtains aluminium alloy smelting refining agent of the present invention.
Embodiment 2
Take by mass percentage NaCl:38 part, KNO
3: 30 parts, CaF
2: 4 parts, Na
2siF
6: 7 parts, Na
3a1F
6: 8 parts, graphite: 6 parts, rare earth scandium and yttrium: 0.6 part, by above several mixing of materials, stir, put into the electric furnace over hot melting water, cooling after coming out of the stove that decrystallizes, last sieving filter obtains aluminium alloy smelting refining agent of the present invention.
Embodiment 3
Take by mass percentage NaCl:40 part, KNO
3: 28 parts, CaF
2: 5 parts, Na
2siF
6: 8 parts, Na
3a1F
6: 9 parts, graphite: 7 parts, rare earth scandium and yttrium: 0.8 part, BaSO
4: 5 parts, by above several mixing of materials, stir, put into the electric furnace over hot melting water, cooling after coming out of the stove that decrystallizes, last sieving filter obtains aluminium alloy smelting refining agent of the present invention.
Embodiment 4
Take by mass percentage NaCl:42 part, KNO
3: 26 parts, CaF
2: 6 parts, Na
2siF
6: 9 parts, Na
3a1F
6: 11 parts, graphite: 8 parts, rare earth scandium and yttrium: 1.2 parts, Na
2cO
3: 6 parts, K
2cO
3: 4 parts, by above several mixing of materials, stir, put into the electric furnace over hot melting water, cooling after coming out of the stove that decrystallizes, last sieving filter obtains aluminium alloy smelting refining agent of the present invention.
Embodiment 5
Take by mass percentage NaCl:45 part, KNO
3: 25 parts, CaF
2: 8 parts, Na
2siF
6: 10 parts, Na
3a1F
6: 12 parts, graphite: 10 parts, rare earth scandium and yttrium: 1.5 parts, Na
2tiF
6: 7 parts, by above several mixing of materials, stir, put into the electric furnace over hot melting water, cooling after coming out of the stove that decrystallizes, last sieving filter obtains aluminium alloy smelting refining agent of the present invention.
Claims (4)
1. an aluminium alloy smelting refining agent, is characterized in that, by NaCl, KNO
3, CaF
2, Na
2siF
6, Na
3a1F
6, graphite and rare earth form, said components is respectively by mass percentage, 35-45%:25-35:3-8%:6-10%:7-12%:5-10%:0.5-1.5%.
2. aluminium alloy smelting refining agent according to claim 1, is characterized in that, said components is respectively NaCl:38-42%, KNO by mass percentage
3: 26-30%, CaF
2: 3-5%, Na
2siF
6: 7-9%, Na
3a1F
6: 8-11%, graphite: 6-8%, rare earth: 0.6-1.2%.
3. aluminium alloy smelting refining agent according to claim 1, is characterized in that: described rare earth is scandium and yttrium, and its mass percent is 1:1.
4. aluminium alloy smelting refining agent according to claim 1, is characterized in that: described refining agent composition also comprises BaSO
4, Na
2cO
3, K
2cO
3, Na
2tiF
6in one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705571.0A CN103695687B (en) | 2013-12-20 | 2013-12-20 | Aluminium alloy smelting refining agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705571.0A CN103695687B (en) | 2013-12-20 | 2013-12-20 | Aluminium alloy smelting refining agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103695687A true CN103695687A (en) | 2014-04-02 |
| CN103695687B CN103695687B (en) | 2016-02-17 |
Family
ID=50357346
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|---|---|---|---|
| CN201310705571.0A Active CN103695687B (en) | 2013-12-20 | 2013-12-20 | Aluminium alloy smelting refining agent |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561632A (en) * | 2015-01-28 | 2015-04-29 | 桑达化工（南通）有限公司 | Aluminum alloy refining agent |
| CN104611578A (en) * | 2014-12-26 | 2015-05-13 | 芜湖市民泰铜业有限责任公司 | Chlorine salt refining method of nonferrous metal |
| CN104611569A (en) * | 2014-12-26 | 2015-05-13 | 芜湖市民泰铜业有限责任公司 | Preparation method of non-ferrous metal refining agent |
| CN104611570A (en) * | 2014-12-26 | 2015-05-13 | 芜湖市民泰铜业有限责任公司 | Preparation method of odorless and tasteless non-ferrous metal refining agent |
| CN104831080A (en) * | 2014-12-26 | 2015-08-12 | 芜湖市民泰铜业有限责任公司 | Preparation method of toxic-free nonferrous metal refining agent |
| CN105316510A (en) * | 2015-10-21 | 2016-02-10 | 广西平果铝合金精密铸件有限公司 | Aluminum alloy refining agent containing rear earth |
| CN107130129A (en) * | 2017-07-18 | 2017-09-05 | 合肥万之景门窗有限公司 | A kind of composite refiner of aluminium alloy and preparation method thereof |
| CN107746984A (en) * | 2017-09-15 | 2018-03-02 | 广西平果铝合金精密铸件有限公司 | A kind of aluminum refining agent of compounds containing rare earth and preparation method thereof |
| CN107805729A (en) * | 2017-09-15 | 2018-03-16 | 广西平果铝合金精密铸件有限公司 | A kind of aluminium alloy smelting refining agent and preparation method thereof |
| CN107876789A (en) * | 2017-12-14 | 2018-04-06 | 民乐县锦世建材新材料有限责任公司 | A kind of method of water atomization production metal dust |
| CN108359810A (en) * | 2018-03-09 | 2018-08-03 | 北京科技大学 | A kind of environment-friendly type regeneration aluminium refining agent and its application method |
| CN108465774A (en) * | 2018-06-06 | 2018-08-31 | 上海魁殊自动化科技有限公司 | Mold coating and preparation method thereof |
| CN108480563A (en) * | 2018-06-06 | 2018-09-04 | 上海魁殊自动化科技有限公司 | Used in aluminium alloy casting plaster mold |
| CN108893619A (en) * | 2018-07-17 | 2018-11-27 | 青岛立博汽车零部件精密铸造有限公司 | A kind of molten aluminum processing method |
| CN109468481A (en) * | 2018-12-07 | 2019-03-15 | 株洲冶炼集团股份有限公司 | A kind of kirsite and cadmia regeneration remove iron fining agent |
| CN112458312A (en) * | 2020-11-25 | 2021-03-09 | 中国恩菲工程技术有限公司 | Refining agent for smelting aluminum or aluminum alloy and application thereof |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104611578A (en) * | 2014-12-26 | 2015-05-13 | 芜湖市民泰铜业有限责任公司 | Chlorine salt refining method of nonferrous metal |
| CN104611569A (en) * | 2014-12-26 | 2015-05-13 | 芜湖市民泰铜业有限责任公司 | Preparation method of non-ferrous metal refining agent |
| CN104611570A (en) * | 2014-12-26 | 2015-05-13 | 芜湖市民泰铜业有限责任公司 | Preparation method of odorless and tasteless non-ferrous metal refining agent |
| CN104831080A (en) * | 2014-12-26 | 2015-08-12 | 芜湖市民泰铜业有限责任公司 | Preparation method of toxic-free nonferrous metal refining agent |
| CN104561632A (en) * | 2015-01-28 | 2015-04-29 | 桑达化工（南通）有限公司 | Aluminum alloy refining agent |
| CN105316510A (en) * | 2015-10-21 | 2016-02-10 | 广西平果铝合金精密铸件有限公司 | Aluminum alloy refining agent containing rear earth |
| CN105316510B (en) * | 2015-10-21 | 2018-06-08 | 广西平果铝合金精密铸件有限公司 | A kind of aluminum refining agent containing rare earth |
| CN107130129A (en) * | 2017-07-18 | 2017-09-05 | 合肥万之景门窗有限公司 | A kind of composite refiner of aluminium alloy and preparation method thereof |
| CN107805729A (en) * | 2017-09-15 | 2018-03-16 | 广西平果铝合金精密铸件有限公司 | A kind of aluminium alloy smelting refining agent and preparation method thereof |
| CN107746984A (en) * | 2017-09-15 | 2018-03-02 | 广西平果铝合金精密铸件有限公司 | A kind of aluminum refining agent of compounds containing rare earth and preparation method thereof |
| CN107876789A (en) * | 2017-12-14 | 2018-04-06 | 民乐县锦世建材新材料有限责任公司 | A kind of method of water atomization production metal dust |
| CN108359810A (en) * | 2018-03-09 | 2018-08-03 | 北京科技大学 | A kind of environment-friendly type regeneration aluminium refining agent and its application method |
| CN108465774A (en) * | 2018-06-06 | 2018-08-31 | 上海魁殊自动化科技有限公司 | Mold coating and preparation method thereof |
| CN108480563A (en) * | 2018-06-06 | 2018-09-04 | 上海魁殊自动化科技有限公司 | Used in aluminium alloy casting plaster mold |
| CN108465774B (en) * | 2018-06-06 | 2020-01-10 | 北京硬创空间科技有限公司 | Mold coating and preparation method thereof |
| CN108893619A (en) * | 2018-07-17 | 2018-11-27 | 青岛立博汽车零部件精密铸造有限公司 | A kind of molten aluminum processing method |
| CN109468481A (en) * | 2018-12-07 | 2019-03-15 | 株洲冶炼集团股份有限公司 | A kind of kirsite and cadmia regeneration remove iron fining agent |
| CN109468481B (en) * | 2018-12-07 | 2020-08-28 | 株洲冶炼集团股份有限公司 | Zinc alloy and zinc slag regeneration iron removal refiner |
| CN112458312A (en) * | 2020-11-25 | 2021-03-09 | 中国恩菲工程技术有限公司 | Refining agent for smelting aluminum or aluminum alloy and application thereof |
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| CN103695687B (en) | 2016-02-17 |
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Inventor after: Liang Riqing Inventor before: Zhang Congcong |
|
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Effective date of registration: 20170510 Address after: Guangdong city of Jiangmen province Gao Sha Road 529030 No. 22 Patentee after: COSCO (J.M.) ALUMINUM DEVELOPMENTS CO.,LTD. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170510 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 19 No. 530031 the Guangxi Zhuang Autonomous Region Zhuangjin Jiangnan District of Nanning City Road Patentee before: GUANGXI DOCTOR HAIYI INFORMATION TECHNOLOGY Co.,Ltd. |
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